The best times to visit Little Missouri National Grassland for ideal weather are

May 28th to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Little Missouri National Grassland Travel Info

Weather in Little Missouri National Grassland

Temperature

Average temperatures in Little Missouri National Grassland vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is less temperate than some — in the 35th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Little Missouri National Grassland, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 88.4°F (31.3°C) with temperatures rarely dropping below 56.9°F (13.8°C) at night.

Little Missouri National Grassland Temperatures (Fahrenheit)

Key
High
Average
Low

Little Missouri National Grassland Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Little Missouri National Grassland Perceived Temperature (F)

Key
High
Average
Low

Little Missouri National Grassland Perceived Temperature (C)

Key
High
Average
Low

 

Average Little Missouri National Grassland Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 29.5 18.6 8.7
Feb 29.9 17.8 7.4
Mar 45.7 30.8 19.7
Apr 55.4 40.6 28.5
May 67.1 52.5 39
Jun 77 62.6 49.7
Jul 85.6 69.8 55.1
Aug 84.7 68.2 53.7
Sep 76.5 59 44.6
Oct 60.2 45.6 34
Nov 43 29 18
Dec 29.8 19.3 9.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -1.4 -7.4 -12.9
Feb -1.2 -7.9 -13.7
Mar 7.6 -0.7 -6.8
Apr 13 4.8 -1.9
May 19.5 11.4 3.9
Jun 25 17 9.8
Jul 29.8 21 12.8
Aug 29.3 20.1 12.1
Sep 24.7 15 7
Oct 15.7 7.6 1.1
Nov 6.1 -1.7 -7.8
Dec -1.2 -7.1 -12.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Little Missouri National Grassland are November, January, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid November. For example, on the week of November 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May with an average of 2 days of significant precipitation the week of May 21st.

When can you find snow in Little Missouri National Grassland? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Little Missouri National Grassland.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Little Missouri National Grassland (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 5% 0 0.5
Feb 5% 0 0.5
Mar 9% 0 1
Apr 14% 0 1.5
May 22% 0 3.4
Jun 19% 0 2.5
Jul 14% 0 2
Aug 11% 0 1.8
Sep 11% 0 1.3
Oct 11% 0 1.5
Nov 4% 0 0.4
Dec 8% 0 0.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 5 0 1.3
Feb 5 0 1.3
Mar 9 0 2.5
Apr 14 0 3.8
May 22 0 8.6
Jun 19 0 6.4
Jul 14 0 5.1
Aug 11 0 4.6
Sep 11 0 3.3
Oct 11 0 3.8
Nov 4 0 1
Dec 8 0 2

 

Humidity and Wind

Little Missouri National Grassland has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is September (48.1% relative humidity), and the most humid month is December (67.8%).

Wind in Little Missouri National Grassland is usually moderate. The windiest month is January, followed by April and March. January’s average wind speed of around 12.2 knots (14 MPH or 22.6 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late January where average top sustained speeds reach 21.1 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Little Missouri National Grassland.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 12.2 Significant breeze 20.1 Strong breeze
Feb 10.4 Gentle breeze 17.9 Strong breeze
Mar 10.7 Gentle breeze 18.8 Strong breeze
Apr 11 Significant breeze 19 Strong breeze
May 10.4 Gentle breeze 18.4 Strong breeze
Jun 9.5 Gentle breeze 17.7 Strong breeze
Jul 8.1 Gentle breeze 15.6 Strong breeze
Aug 8.1 Gentle breeze 15.4 Significant breeze
Sep 8.9 Gentle breeze 16.1 Strong breeze
Oct 10.1 Gentle breeze 17.7 Strong breeze
Nov 10.4 Gentle breeze 17.3 Strong breeze
Dec 9.8 Gentle breeze 16.7 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 63%
Feb 64.1%
Mar 56.8%
Apr 50.8%
May 52%
Jun 59.8%
Jul 55.7%
Aug 51.8%
Sep 48.1%
Oct 54.3%
Nov 58.7%
Dec 67.8%

 

Is it Safe to Travel to Little Missouri National Grassland?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Little Missouri National Grassland, the United States is August, followed by July and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Little Missouri National Grassland in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 50.1 in December means 50.1% of the tourists vs. August.

 

 

Overall Little Missouri National Grassland Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 71.2°F (21.8°C) and 26.6°F (-3°C) with warmer temperatures in the later months. Rain is somewhat common with 3 to 7 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are comfortable. These months see moderate precipitation with 4 to 6 days of precipitation per month. June – August is the busiest season for tourism in Little Missouri National Grassland, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 80.7°F (27.1°C) and 36.8°F (2.7°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 4 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is far too cold this time of year in Little Missouri National Grassland to be enjoyable for warm weather travelers. The average high during this season is between 37.6°F (3.1°C) and 25.7°F (-3.5°C). On average, it rains or snows a smalll amount: 1 to 3 times per month. These times of year are the slowest with tourists.

 

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